Why would you want a rabbit or clit sucker if you are male? From your list I would suggest the Fleshlight. Stoya Destroya or STU. If you can figure out a way to use them hands free it is the closest you will get to real sex solo.
You also listed spreader bars which implies you are part of a couple which also changes things up a bit for recommendations. More info needed for best advice.
You have a pretty healthy setup, as do we. We recently purchased a st Andrew’s cross and a flogger. Highly recommend if you have the space for it. It makes for fun tease and edge play if neither of you are into the flogger even!
I would say buy them all but not likely financially viable. Get the Fleshlight for you, the rabbit for her, and the spreader bars for you both. Just MO
Gag either ball or dog bone
IF you’re inclined urethral sounding rod/rosebud sound, feels really nice, my wife likes too
Cock ring do you have any metal ones?
Cor sounds like you got a bit of everything! But I didn’t see any glass toys so maybe a glass plug will do the trick or metal one! Oooor how about some sounding rods and electro stimulation
